science
Grade-4-
Easy

Question

On melting at _______, rock becomes magma.

  1. High temperature
  2. Low temperature
  3. High wind
  4. Low pressure

hintHint:

The formation of magma or lava takes place at high temperatures.

The correct answer is: High temperature


    • The rock on the deepest of the earth's crust melts with the presence of water and carbon dioxide at high temperatures.
    • The magma is in the lowest of the earth's crust and at the surface of the mantle.
    • It oozes out through the cracks in the earth's crust and can reach the surface of the earth.
    • The magma cools and crystallized to form igneous rock.   

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